The CPO is a horizontal, end suction, ANSI process pumpwith open impeller (OH1 type)

Our CPO pump line is the result of tremendous efforts to meet the ever-changing demands and complex needs of our clients in a wide range of industrial, chemical and municipal applications. It is designed to meet or exceed the ANSI/ASME B73.1 – 2012 specification and is available in 31 sizes.

Our installed base, with users in the general industry, chemical process and municipal markets, demonstrate the remarkable reliability and performance of our CPO pump.

The CPO highly-engineered Power Frame is 100% interchangeable with the most common American pump manufacturer

Operating Limits

FLOW: up to 7,000 gpm (1,590 m³/h)

HEAD: up to 650 ft (198 m)

PRESSURE: up to 375 psi (26 bar)

DISCHARGE FLANGE: 1" to 8"

Pump performance chart

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Why prefer the CPO over competitor brands?

Lower NPSHr due to the computerized impeller design

More robust Power Frame due to larger bearings than competitors

Bearing life of 50000 hours at BEP, max speed and max impeller diameter

Plate retainer for axial bearing instead of snap ring increases the bearing life, reduces vibration and eliminates end shaft play

Micrometer impeller setting feature. It’s easier to set the impeller clearance vs the jack screw method used by competitor

Available downloads

Let's solve your industrial process needs... with the Ruhrpumpen CPO

It is our goal to understand our customers’ needs in order to provide the best possible solution. If you're considering using the CPO pump for your application or are interested in learning more about this pump line, be sure to talk to an experienced engineer first. We will be happy to answer any questions you may have.

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CPO-L pump for low flow, high head applications

Designed to fill the gap on the low flow side of the CPO range map, the CPO-L counts with a radial vane impeller especially designed to reduce the thrust load and seal chamber pressure normally associated with low flow applications. It also complies with the ANSI/ASME B73.1 standard.

With low flow applications, it is important to reduce the radial load and potential shaft deflection issues. Ruhrpumpen’s radial vane impeller and concentric pump casing for the CPO-L are specifically designed to reduce these issues at low flow or throttled operating conditions. The radial vane impeller with balance holes also reduces seal chamber pressures. This will lead to increased seal and bearing life and increased reliability.

Other optional features

C-Frame motor adapter

The CPO frame counts with three ears to support the optional C-Frame.

Baseplate mounting systems

Our range of baseplate options is ready to meet any plant requirements to facilitate installation and maintenance.

Click on the image to enlarge.

We are a worldwide company dedicated to the design, manufacture, sales and service of pumping technology. Distinguished by our quality, and ease of doing business, with our customers always as a priority.